Pittsburgh Penguins defenseman Brooks Orpik skated briefly Friday morning, though he won't take part in the team's game-day skate prior to playing the New Jersey Devils.
Orpik skated with injured teammates Rob Scuderi and Tanner Glass, who are also on injured reserve.
Penguins coach Dan Bylsma said Orpik's skate was merely light exercise and part of the protocol as he recovers from a concussion. He still has concussion symptoms.
There remains no timetable for the return of Orpik, who was pulled down from behind by Boston forward Shawn Thornton in a game between the teams on Dec. 7.
Thornton has an in-person disciplinary hearing with the NHL Department of Player Safety on Friday.